Tuesday’s announcement comes after the recent arrest of a jockey at the southern New Mexico track for allegedly using an electronic device to make his horse run faster.

Four horses tested positive in July 2013 at Ruidoso Downs for a prohibited drug that’s an ingredient of Viagra.

Track chairman R.D. Hubbard says all horses must be on the grounds in the track barn area 10 days before running in the trials of each of the Triple Crown futurities and derbies run during the 2015 season.

The track also will install new surveillance cameras at the stable gates along with barns and stalls of the 20 qualifiers to the futurities and derbies.